Synthesis, characterization and crystal structure of bis(1H-indole-3-ethylene-3′-ethoxysalicylaldimine)nickel(II

• Published in: Inorganica Chimica Acta Vol. 176; no. 2; pp. 261 - 265
• Main Authors: Gili, P., Martin-Zarza, P., Palacios, M.S., Rodriguez, M.L., Ruiz-Perez, C., Rodriguez-Romero, F.V.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 15.10.1990
• ISSN: 0020-1693; 1873-3255
• DOI: 10.1016/S0020-1693(00)84853-7

A complex of Ni(II) with the Schiff base 1H-indole-3-ethylene-3′-ethoxysalicylaldimine (3EtOsalTPA) has been prepared and characterized by means of elemental analysis, IR, 1H NMR, electronic spectroscopy, magnetic susceptibility measurements, as well as by X-ray diffraction. The compound crystallizes in the monoclinic system, P2 1/ c space group, Z = 2, cell dimensions: a = 10.794(1), b = 10.494(1), c = 14.571(1) Å; β = 98.93(9)°, V = 1630(1) Å 3, final R = 0.056. The geometry around the Ni atom is square planar with the metal lying on a center of symmetry. There is an intermolecular hydrogen bond between the N atom of the indol group and the phenolic oxygen of the ethoxysalicylaldiminate moiety, through the − x, y + 1 2 , − z− 1 2 symmetry operation.